[Haskell-cafe] Backpatching

[Stefan O'Rear]

On Wed, Aug 01, 2007 at 03:44:32PM +1000, Thomas Conway wrote:
> This sounds like a common problem type. Is there a well known solution
> to this sort of problem?

Mmm... logic programming?

http://citeseer.ist.psu.edu/claessen00typed.html

You'll only need the code for logic-variables, and even that can be
simplified because your "terms" are non-recursive.  (Even in the
recursive case, a logic program like a HM typechecker usually only needs
~50 lines of prelude).

(If you want an less enlightening answer, Map String (STRef s (Maybe Integer)))..

Stefan
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